Oil and Gas Field Services

Establishments primarily engaged in drilling wells for oil or gas field operations for others on a contract or fee basis. This industry includes contractors that specialize in spudding in, drilling in, redrilling, and directional drilling. Sample business functions include directional drilling of oil and gas wells, redrilling oil and gas wells, reworking oil and gas wells, spudding in oil and gas wells, and drilling gas, oil, and water intake wells—all on a contract basis.

Establishments primarily engaged in providing geophysical, geological, and other exploration services for oil and gas on a contract or fee basis. Sample business functions include aerial geophysical exploration for oil and gas fields, geological exploration for oil and gas fields, geophysical exploration for oil and gas fields, and seismograph surveys for oil and gas fields.

Establishments primarily engaged in providing oil and gas field services not elsewhere classified for others on a contract or fee basis. Services include excavating slush pits and cellars, grading and building foundations at well locations, well surveying, running, cutting, and pulling casing tubes and rods, cementing wells, shooting wells, perforating well casings, acidizing and chemically treating wells, and cleaning, bailing, and swabbing wells. Establishments with complete responsibility for operating oil and gas wells for others are classified based on the product extracted rather than as oil and gas field services. Establishments primarily engaged in hauling oil and gas field supplies and equipment are classified elsewhere. Sample business functions include acidizing wells, bailing wells, building oil and gas well foundations, cementing well casings, chemically treating wells, cleaning lease tanks and wells, building, repairing, and dismantling derricks, dismantling oil well rigs, and erecting lease tanks—all on a contract basis.